- Usage in publication:
-
- Orleans phyllite
- Modifications:
-
- Original reference
- Dominant lithology:
-
- Phyllite
- AAPG geologic province:
-
- New England province
Summary:
Pg. 93-108. Orleans phyllite. Gray highly schistose rocks, formed from fine sediments, more or less completely recrystallized. Extends north and south across eastern part of Orleans County, Vermont, according to writer's observations, and Richardson mentions belts of it in western part of county. Constitutes a distinct formation and is entitled to a name. Richardson's rather inclusive term Bradford schists [Ordovician] perhaps embraces it, although it is not a typical schist but a phyllite. No fossils.
Source: US geologic names lexicon (USGS Bull. 896, p. 1562-1563).
- Usage in publication:
-
- Orleans phyllite
- Modifications:
-
- Age modified
- AAPG geologic province:
-
- New England province
Summary:
Pg. 77-103. Orleans phyllite of Jacobs underlies Waits River limestone and is therefore older than Randolph phyllite, which is interbedded and interstratified with Waits River limestone.
Source: US geologic names lexicon (USGS Bull. 896, p. 1562-1563).
- Usage in publication:
-
- Orleans phyllite
- Modifications:
-
- Age modified
- AAPG geologic province:
-
- New England province
Summary:
Table opp. p. 288. Orleans phyllite. Assigned this phyllite to Ordovician.
Source: US geologic names lexicon (USGS Bull. 896, p. 1562-1563).
For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.
Asterisk (*) indicates published by U.S. Geological Survey authors.
"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).
Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).